The will of Prince Philip has been ordered to be sealed by a London High Court. 

Prince Philipโ€™s will shall remain a secret for the next 90 years, the High Court ruled. 

Sealing of Philipโ€™s will has been ordered to โ€œprotect the dignity and standingโ€ of the monarch. 

Prince Philip, the Duke of Edinburgh, had passed away at the age of 99 on April 9. 

Notably, it is a convention for members of the royal family to ask that their will remain private. 

Keeping up with the convention, Andrew McFarlane, president of the courtโ€™s Family Division, said he had agreed Philipโ€™s will should be sealed up โ€œand that no copy of the will should be made for the record or kept on the court file.โ€ 

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The convention, under which the will shall be kept secret dates back to 1910. 

โ€œThe degree of publicity that publication would be likely to attract would be very extensive and wholly contrary to the aim of maintaining the dignity of the Sovereign,โ€ McFarlane said in a ruling. 

The judge said 90 years should pass from the granting of probate before the will should be unsealed in private before possible publication, a period he said was โ€œproportionate and sufficient.โ€ 

Philip, the Duke of Edinburgh, who had been married to the 95-year-old British monarch for more than seven decades, died at the age of 99 at his wifeโ€™s Windsor Castle home to the west of London on April 9.